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Hi Members.getting ready to test the led backlights.Power board (bn44-00499a) states leds take 331volts,289ma.the plug(cn802) for the leds is labeled pin1,2=d1+,pin4=d1-,pin6=d2-+' and pin8,9=d2-. Are these led arrays wired in series?should the external power supply be connected to them in series( power supply negative connected to pin8,9 d2-- and positive be connected to pin1,2 d1 + with pin4,6 connected together?I have to check if pin4,6 are already connected through led array. I will use a variable supply ,monitoring current draw. Thanks for any input. RonL
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Source of free vintage Canadian tv service info.Caretaker of various 1920 to 70s radios,a Farnsworth 651p tv,a RCA Ctc5 and a few 50s tvs.
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06-01-2022, 02:43 AM
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